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Inphi Corporation patents


Recent patent applications related to Inphi Corporation. Inphi Corporation is listed as an Agent/Assignee. Note: Inphi Corporation may have other listings under different names/spellings. We're not affiliated with Inphi Corporation, we're just tracking patents.

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Method and system for transmitter optimization of an optical pam serdes based on receiver feedback

The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using pam format(s) over optical communication networks. ... Inphi Corporation

Method of reducing power dissipation in a clock distribution network for integrated circuit

A method and circuit are provided to reduce power consumption of high-speed clocks that are distributed across an integrated circuit (ic). Example implementations seek to reduce the amount of power dissipated in typical clock distribution networks by turning the combination of a multi-port electrical network and transmission line into a multi-resonant structure. ... Inphi Corporation

Adaptive mach zehnder modulator linearization

The present invention is directed to optical communication systems and methods thereof. In various embodiments, the present invention provides method for linearizing mach zehnder modulators by digital pre-compensation and adjusting the gain of the driver and/or the modulation index. ... Inphi Corporation

Built-in self test for loopback on communication system on chip

In an example, the present invention includes an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

Compact high speed duty cycle corrector

Embodiments of the present invention provide techniques for duty cycle correction of clock signals. An input clock signal passes through a pair of output transistors, which provides an output clock signal based on the input clock signal. ... Inphi Corporation

Broadband general interference mmi-based polarization beam splitter

A polarization beam splitter includes a silicon waveguide body of a thickness in rectangular shape with a width and a length between a first end plane and a second end plane. Two input ports are formed in the first end plane at two separate locations respectively next to two opposing length edges. ... Inphi Corporation

Temperature insensitive delay line interferometer

A silicon photonics based temperature-insensitive delay line interferometer (dli). The dli includes a first arm comprising a first length of a first material characterized by a first group index corresponding to a first phase delay to transfer a first light wave with a first peak frequency and a second arm comprising a second length of a second material characterized by a second group index corresponding to a second phase to transfer a second light wave with a second peak frequency with a time-delay difference relative to the first light wave. ... Inphi Corporation

Silicon-waveguide-based broadband polarization beam rotator

A compact polarization beam rotator includes a converter waveguide comprising a first segment and a second segment both in corresponding taper rib shapes sharing a first middle plane and configured to receive an input optical signal with tm polarization mode from an input plane and convert the tm polarization mode to te1 polarization mode comprising a first arm mode and a second arm mode at a second middle plane. The polarization beam rotator additionally includes a splitter waveguide coupled to the second middle plane for separating the first arm mode and the second arm mode at a third plane respectively coupled to a first branch waveguide to deliver the first arm mode in phase and a second branch waveguide to reverse the second arm mode phase by 180°, and a 2×1 mmi coupler waveguide to combine both arm modes in phase to an output optical signal with te polarization mode.. ... Inphi Corporation

Split cascode circuits and related communication receiver architectures

Split cascode circuits include multiple cascode paths coupled between voltage supply rails. Each cascode path includes a pair of controllable switches. ... Inphi Corporation

Transimpedance amplifier with variable inductance input reducing peak variation over gain

A transimpedance amplifier (tia) structure includes an input node with a variable inductance component serving to reduce variation in peak amplitude over different gain conditions. According to certain embodiments, an inductor at the tia input has a first node in communication with a field effect transistor (fet) drain, and a second node in communication with the fet source. ... Inphi Corporation

Vertical integration of hybrid waveguide with controlled interlayer thickness

An silicon photonics device of hybrid waveguides having a coupling interlayer with an accurately controlled thickness and a method of making the same. The device includes a first plurality of si waveguides formed in a soi substrate and a first layer of sio2 overlying the first plurality of si waveguides and a second plurality of si3n4 waveguides formed on the first layer of sio2. ... Inphi Corporation

Pam4 transceivers for high-speed communication

The present invention is directed to data communication. More specifically, embodiments of the present invention provide a transceiver that processes an incoming data stream and generates a recovered clock signal based on the incoming data stream. ... Inphi Corporation

Forward error correction (fec) emulator

Embodiments relate to the emulation of the effect of forward error correction (fec) codes, e.g., gf10 reed solomon (rs) fec codes, on the bit error ratio (ber) of received pseudo-random binary sequences (prbs) patterns. In particular, embodiments group errors into rs-fec symbols and codewords in order to determine if the errors are correctable. ... Inphi Corporation

Driver module for mach zehnder modulator

A single chip dual-channel driver for two independent traveling wave modulators. The driver includes two differential pairs inputs per channel respectively configured to receive two digital differential pair signals. ... Inphi Corporation

04/12/18 / #20180102852

Circuit for multi-path interference mitigation in an optical communication system

A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (pam) e-field are processed by generating a pam level for each sample. ... Inphi Corporation

04/12/18 / #20180102850

High-speed receiver architecture

A receiver (e.g., for a 10 g fiber communications link) includes an interleaved adc coupled to a multi-channel equalizer that can provide different equalization for different adc channels within the interleaved adc. That is, the multi-channel equalizer can compensate for channel-dependent impairments. ... Inphi Corporation

04/12/18 / #20180102839

Channel diagnostics based on equalizer coefficients

A receiver applies a calibration method to compensate for skew between input channels. The receiver skew is estimated by observing the coefficients of an adaptive equalizer which adjusts the coefficients based on time-varying properties of the multi-channel input signal. ... Inphi Corporation

03/22/18 / #20180083707

Apparatus and methods for digital signal constellation transformation

Apparatus and method for digital signal constellation transformation are provided herein. In certain configurations, an integrated circuit includes an analog front-end that converts an analog signal vector representing an optical signal into a digital signal vector, and a digital signal processing circuit that processes the digital signal vector to recover data from the optical signal. ... Inphi Corporation

03/22/18 / #20180083585

Linear variable gain amplifier

The present invention is directed to electrical circuits and techniques thereof. More specifically, an embodiment of the present invention provides a variable gain amplifier that includes a first transistor and a second transistor whose gate terminals are coupled to a first input terminal. ... Inphi Corporation

03/22/18 / #20180081856

Monolithically integrated system on chip for silicon photonics

The present invention provides an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

03/08/18 / #20180069632

Coherent optical transceiver with programmable application modes

Methods of operating an optical communication system in coherent optical transmissions for metro applications. Relative to conventional solutions, the optical communication system can be implemented with reduced cost and can operate with reduced power consumption, while maintaining high data rate performance (e.g., 100 g). ... Inphi Corporation

03/08/18 / #20180069514

Low voltage high speed cmos line driver without tail current source

The present invention is directed to electrical circuits and techniques thereof. More specifically, an embodiment of the present invention provides a line driver with transistors directly coupled to the ground, and a bias voltage is coupled common mode resistors of the line driver. ... Inphi Corporation

03/08/18 / #20180067888

Single-chip control module for an integrated system-on-a-chip for silicon photonics

The present invention provides an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

03/08/18 / #20180067887

Pcie lane aggregation over a high speed link

A method of operating a computer network system configured with disaggregated inputs/outputs. This system can be configured in a leaf-spine architecture and include a router coupled to a network source, a plurality of core switches coupled to the router, a plurality of aggregator switches coupled to each of the plurality of core switches, and a plurality of rack modules coupled to each of the plurality of aggregator switches. ... Inphi Corporation

03/08/18 / #20180067375

Balanced mach-zehnder modulator

An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first pn junction on a substrate and a second waveguide comprising a second pn junction on the silicon-on-insulator substrate. ... Inphi Corporation

03/01/18 / #20180062760

Single-chip transceiver with electronic dispersion compensation for coherent optical channels

A transceiver for fiber optic communications. The transceiver can include a transmitter module having a transmitter host interface configured to receive an input host signal; a transmitter framer configured to frame the input host signal and to generate a framed host signal; and a transmitter coder configured to encode the framed host signal to generate an encoded host signal for transmission over a communication channel. ... Inphi Corporation

03/01/18 / #20180062751

Off quadrature mach-zehnder modulator biasing

The present invention relates to telecommunication techniques and integrated circuit (ic) devices. More specifically, embodiments of the present invention provide an off-quadrature modulation system. ... Inphi Corporation

02/22/18 / #20180054191

Low power buffer with dynamic gain control

The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. ... Inphi Corporation

02/08/18 / #20180041287

High-speed optical communications system

A receiver for fiber optic communications.. . ... Inphi Corporation

02/08/18 / #20180041175

Transimpedance amplifier with variable inductance input reducing peak variation over gain

A transimpedance amplifier (tia) structure includes an input node with a variable inductance component serving to reduce variation in peak amplitude over different gain conditions. According to certain embodiments, an inductor at the tia input has a first node in communication with a field effect transistor (fet) drain, and a second node in communication with the fet source. ... Inphi Corporation

02/08/18 / #20180039027

Fiber coupler for silicon photonics

An apparatus for converting fiber mode to waveguide mode. The apparatus includes a silicon substrate member and a dielectric member having an elongated body. ... Inphi Corporation

02/01/18 / #20180032467

Single-chip control module for an integrated system-on-a-chip for silicon photonics

The present invention provides an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

02/01/18 / #20180032466

Single-chip control module for an integrated system-on-a-chip for silicon photonics

The present invention provides an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

01/25/18 / #20180026726

Cycle slip compensation in a coherent receiver

A receiver architecture and method recovers data received over an optical fiber channel in the presence of cycle slips. In a first cycle slip recovery architecture, a receiver detects and corrects cycle slips based on pilot symbols inserted in the transmitted data. ... Inphi Corporation

01/18/18 / #20180019239

Integrated photo detector, method of making the same

An integrated photo detector with enhanced electrostatic discharge damage (esd) protection. The integrated photo detector includes a first photodiode formed in the soi substrate and associated with a first p-electrode and a first n-electrode. ... Inphi Corporation

01/11/18 / #20180013510

Optical module

An integrated apparatus with optical/electrical interfaces and protocol converter on a single silicon substrate. The apparatus includes an optical module comprising one or more modulators respectively coupled with one or more laser devices for producing a first optical signal to an optical interface and one or more photodetectors for detecting a second optical signal from the optical interface to generate a current signal. ... Inphi Corporation

01/04/18 / #20180006617

Self biased dual mode differential cmos tia for 400g fiber optic links

A transimpedance amplifier (tia) device. The device includes a photodiode coupled to a differential tia with a first and second tia, which is followed by a level shifting/differential amplifier (ls/da). ... Inphi Corporation

12/28/17 / #20170373761

Apparatus and method for recovering data at an optical receiver with automatic tuning

An optical receiver that recovers data is disclosed. The optical receiver includes a photodetector configured to convert an optical signal into a current signal, and a tia (transimpedance amplifier) configured to operate according to a set of parameters to convert the current signal to a voltage signal. ... Inphi Corporation

12/28/17 / #20170373759

Enhanced digital diagnostics for optical pam apparatus

A pulse amplitude modulated (pam) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. ... Inphi Corporation

12/21/17 / #20170366259

Enhanced digital diagnostics for optical pam apparatus

A pulse amplitude modulated (pam) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. ... Inphi Corporation

12/21/17 / #20170366147

Differential circuits with constant gm bias

The present invention is directed to electrical circuits and techniques thereof. More specifically, embodiments of the present invention provide a differential amplifier that has a differential amplifier section, a current source, and a feedback section. ... Inphi Corporation

12/14/17 / #20170357053

Broadband silicon nitride polarization beam splitter

A compact polarization beam splitter is formed by cascading two stages of three restricted mmis. Each mimi is configured to set ultra compact width and length for a rectangular waveguide body to limit no more than 4 modes therein working as a polarization beam splitter in a 50 nm wavelength window around 1300 nm. ... Inphi Corporation

11/30/17 / #20170346552

Built-in self test for loopback on communication system on chip

In an example, the present invention includes an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

11/09/17 / #20170324482

Temperature insensitive delay line interferometer

A silicon photonics based temperature-insensitive delay line interferometer (dli). The dli includes a first arm comprising a first length of a first material characterized by a first group index corresponding to a first phase delay to transfer a first light wave with a first peak frequency and a second arm comprising a second length of a second material characterized by a second group index corresponding to a second phase to transfer a second light wave with a second peak frequency with a time-delay difference relative to the first light wave. ... Inphi Corporation

10/26/17 / #20170310400

56 gbps pam4 driver module for mach zehnder modulator

A pam4 driver with at least 56 gbps speed for driving a mach-zehnder modulator. The pam4 driver is configured as 2-bit cmos digital-to-analog convertor including a drive control module for receiving a pair of incoming differential digital data and generating a first processed reference signal and a second processed reference signal. ... Inphi Corporation

10/12/17 / #20170295042

Method and system using driver equalization in transmission line channels with power or ground terminations

A driver circuit device using driver equalization in power and ground terminated transmission line channels. The driver circuit device can include a weaker pull-up driver, which is needed to pre-emphasize the pull-up signal for driver equalization in power terminated transmission line channels. ... Inphi Corporation

10/05/17 / #20170285267

Delay line interferometer with polarization compensation at selective frequency

An apparatus of polarization self-compensated delay line interferometer. The apparatus includes a first waveguide arm of a first material of a first length disposed between an input coupler and an output coupler and a second waveguide arm of the first material of a second length different from the first length disposed between the same input coupler and the same output coupler. ... Inphi Corporation

09/21/17 / #20170272046

Split cascode circuits and related communication receiver architectures

Split cascade circuits include multiple cascade paths coupled between voltage supply rails. Each cascade path includes a pair of controllable switches. ... Inphi Corporation

09/14/17 / #20170261708

Compact optical transceiver by hybrid multichip integration

A compact optical transceiver formed by hybrid multichip integration. The optical transceiver includes a si-photonics chip attached on a pcb. ... Inphi Corporation

09/07/17 / #20170257237

Eye modulation for pulse-amplitude modulation communication systems

The present invention is directed to communication systems. More specifically, embodiments of the present invention provide a technique and system thereof for performing eye modulation. ... Inphi Corporation

09/07/17 / #20170257168

Pam4 transceivers for high-speed communication

The present invention is directed to data communication. More specifically, embodiments of the present invention provide a transceiver that processes an incoming data stream and generates a recovered clock signal based on the incoming data stream. ... Inphi Corporation

09/07/17 / #20170254968

Optical transceiver by fowlp and dop multichip integration

An optical transceiver by hybrid multichip integration. The optical transceiver includes a pcb with a plurality of prefabricated surface bonding sites. ... Inphi Corporation

09/07/17 / #20170254953

Vertical integration of hybrid waveguide with controlled interlayer thickness

An silicon photonics device of hybrid waveguides having a coupling interlayer with an accurately controlled thickness and a method of making the same. The device includes a first plurality of si waveguides formed in a soi substrate and a first layer of sio2 overlying the first plurality of si waveguides and a second plurality of si3n4 waveguides formed on the first layer of sio2. ... Inphi Corporation

08/10/17 / #20170230140

Apparatus and method for communicating data over an optical channel

An optical module processes first fec (forward error correction) encoded data produced by a first fec encoder. The optical module has a second fec encoder for further coding a subset of the first fec encoded data to produce second fec encoded data. ... Inphi Corporation

08/10/17 / #20170230119

Circuit for multi-path interference mitigation in an optical communication system

A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (pam) e-field are processed by generating a pam level for each sample. ... Inphi Corporation

08/03/17 / #20170222717

Enhanced digital diagnostics for optical pam apparatus

A pulse amplitude modulated (pam) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. ... Inphi Corporation

07/27/17 / #20170214554

Pam data communication with reflection cancellation

The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide a communication system that removes reflection signals. ... Inphi Corporation

07/27/17 / #20170214469

Driver module for mach zehnder modulator

A single chip dual-channel driver for two independent traveling wave modulators. The driver includes two differential pairs inputs per channel respectively configured to receive two digital differential pair signals. ... Inphi Corporation

07/20/17 / #20170207933

Fec coding identification

The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide techniques for transceivers to quickly identify fec mode used in data communication. ... Inphi Corporation

07/20/17 / #20170207908

Skew management for pam communication systems

The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. ... Inphi Corporation

07/20/17 / #20170207904

Circuit and method for creating additional data transitions

When a data path includes cmos circuitry, such circuitry may introduce into the data signal. Embodiments are described in which additional data transitions are made to occur, and these additional data transitions may change the characteristics of the data frequency content transferred to the power supply so that such noise may be better filtered. ... Inphi Corporation

07/20/17 / #20170207864

Low power buffer with gain boost

The present disclosure provides a detailed description of techniques for implementing a low power buffer with gain boost. More specifically, some embodiments of the present disclosure are directed to a buffer with a stacked transistor configuration, wherein the first transistor receives an input signal and the second transistor receives a complement of the input signal. ... Inphi Corporation

07/13/17 / #20170201267

Interleaved successive approximation register analog to digital converter

In an example, the present invention provides an analog to digital converter device for a high speed data transmission from 1 gs-s to 100 gs-s, although there can be other variations. In an example, the device has an input receiver device coupled to a transimpedance amplifier. ... Inphi Corporation

07/13/17 / #20170200498

Data clock synchronization in hybrid memory modules

Disclosed herein are techniques for implementing data clock synchronization in hybrid memory modules. Embodiments comprise a clock synchronization engine at a command buffer to generate a synchronized data clock having a phase relationship with data signals from a non-volatile memory controller that compensates for various synchronous and/or asynchronous delays to facilitate latching of the data signals at certain dram devices (e.g., during data restore operations). ... Inphi Corporation

07/06/17 / #20170194970

Cmos interpolator for a serializer/deserializer communication application

The present invention relates generally to integrated circuits. More particularly, the present invention provides a circuit and method for regulating a voltage for a high speed serializer/deserializer (serdes) device. ... Inphi Corporation

06/29/17 / #20170187555

Pulse amplitude modulation (pam) data communication with forward error correction

The present invention is directed to data communication system and methods. More specifically, embodiments of the present invention provide an apparatus that receives data from multiple lanes, which are then synchronized for transcoding and encoding. ... Inphi Corporation

06/29/17 / #20170187343

Method for improving stable frequency response of varible gain amplifier

A variable gain amplifier having stabilized frequency response for widened gain control range. A resistor-capacitor compensation network is provided between two differential current input ports and corresponding emitter nodes of cross-coupled four transistors in the variable gain amplifier to desensitize the gain control voltages to the system noise and provide compensation to the vga frequency response when the differential gain control voltage varies the gain setting, yielding a substantially stabilized frequency response over a −3 db bandwidth ranging from 1 ghz to 60 ghz with a widened gain control range up to 12 db without increasing power consumption.. ... Inphi Corporation

06/29/17 / #20170184941

Balanced mach-zehnder modulator

An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first pn junction on a silicon-on-insulator substrate and a second waveguide comprising a second pn junction on the silicon-on-insulator substrate. ... Inphi Corporation

06/22/17 / #20170179934

Sr latch circuit with single gate delay

An sr latch circuit with single gate delay is provided. The circuit has an an enable input and an sr latch. ... Inphi Corporation

06/08/17 / #20170163408

Frequency acquisition for serdes receivers

The present invention is directed to data communication. More specifically, embodiments of the present invention provide a method for acquiring sampling frequency by sweeping through a predetermined frequency range, performing data sampling at different frequencies within the predetermined frequency range, and determining a target frequency for sampling data based on a maximum early peak frequency and a maximum late peak frequency. ... Inphi Corporation

05/18/17 / #20170141843

Built-in self test for loopback on communication system on chip

In an example, the present invention includes an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

05/11/17 / #20170134095

Driver module for mach zehnder modulator

A single chip dual-channel driver for two independent traveling wave modulators. The driver includes two differential pairs inputs per channel respectively configured to receive two digital differential pair signals. ... Inphi Corporation

05/11/17 / #20170134034

Systems and methods for comparator calibration

The present invention is directed integrated circuits and methods thereof. More specifically, an embodiment of the present invention provides a comparator calibration loop where a digital integrator stores a running sum based on the output of a comparator. ... Inphi Corporation

05/11/17 / #20170131153

Voltage and temperature sensor for a serializer/deserializer communication application

The present invention relates to integrated circuits. More specifically, embodiments of the present invention provide methods and systems for determining temperatures of an integrated circuit using an one-point calibration technique, where temperature is determined by a single temperature measurement and calculation using known electrical characteristics of the integrated circuit.. ... Inphi Corporation

05/04/17 / #20170127160

Multilane variable bias for an optical modulator

In an example, the present invention includes an integrated system on chip device. The device has a variable bias block configured with the control block, the variable bias block being configured to selectively tune each of a plurality of laser devices provided on the silicon photonics device to adjust for at least a wavelength of operation, a fabrication tolerance, and an extinction ratio.. ... Inphi Corporation

05/04/17 / #20170127159

Configurable multi-rate format for communication system for silicon photonics

In an example, the present invention includes an integrated system on chip device. The device has a data input/output interface provided on the substrate member and configured for a predefined data rate and protocol. ... Inphi Corporation

05/04/17 / #20170126329

Wideband low dropout voltage regulator with power supply rejection boost

The present disclosure provides a detailed description of techniques for implementing a wideband low dropout voltage regulator with power supply rejection boost. More specifically, some embodiments of the present disclosure are directed to a voltage regulator comprising a voltage regulator core powered by a supply voltage and providing a regulated voltage output, and a power supply feed forward injection module delivering an injection signal to the voltage regulator core to effect a power supply rejection of the supply voltage variation from the regulated voltage. ... Inphi Corporation

05/04/17 / #20170126322

Wavelength control of two-channel demux/mux in silicon photonics

Method and devices of controlling wavelengths in two-channel demux/mux in silicon photonics are provided. The two-channel demux/mux includes a waveguide-based delay-line-interferometer at least in receiver portion of a two-channel transceiver for dwdm optical transmission loop and is configured to split a light wave with combined two-wavelengths into one light wave with locked one channel wavelength and another light wave with locked another channel wavelength. ... Inphi Corporation

05/04/17 / #20170126313

System and method for calibration of an optical module

A system and method for calibrating an optical module. The optical module including a microprocessor with non-volatile memory is provided at a calibration station for measuring calibrated value of a device parameter against raw values starting from minimum value in each of multiple zones of a primary parameter with one or more secondary parameters at least being set to a basis calibration point to determine coefficients for generating a n-spline function for the multiple zones and multiple multipliers for each zone corresponding to multiple calibration points. ... Inphi Corporation

05/04/17 / #20170126217

Low power buffer with dynamic gain control

The present disclosure provides a detailed description of techniques for implementing a low power buffer with dynamic gain control. More specifically, some embodiments of the present disclosure are directed to a buffer having a gain boost configuration and a current shunt circuit to control the gain of a respective gain boosting transistor of the gain boost configuration. ... Inphi Corporation

05/04/17 / #20170124022

Monolithically integrated system on chip for silicon photonics

In an example, the present invention includes an integrated system on chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

05/04/17 / #20170123160

Fiber coupler for silicon photonics

An apparatus for converting fiber mode to waveguide mode. The apparatus includes a silicon substrate member and a dielectric member having an elongated body. ... Inphi Corporation

04/27/17 / #20170118046

System and method for adjusting clock phases in a time-interleaved receiver

Clock timing skew may occur during operation of a time-interleaved receiver. It would be beneficial to try to determine if there is timing skew, and if there is, then address it, such as by reducing or eliminating some or all of the timing skew. ... Inphi Corporation

04/20/17 / #20170111110

Integrated driver redundancy for a silicon photonics device

In an example, the present invention includes an integrated system on chip device. At least a pair of laser devices are associated with a channel and coupled to a switch to select one of the pair of laser devices to be coupled to an optical multiplexer to provide for a redundant laser device.. ... Inphi Corporation

03/30/17 / #20170093513

Optical module

An integrated apparatus with optical/electrical interfaces and protocol converter on a single silicon substrate. The apparatus includes an optical module comprising one or more modulators respectively coupled with one or more laser devices for producing a first optical signal to an optical interface and one or more photodetectors for detecting a second optical signal from the optical interface to generate a current signal. ... Inphi Corporation

03/30/17 / #20170093379

Sr latch circuit with single gate delay

An sr latch circuit with single gate delay is provided. The circuit has an an enable input and an sr latch. ... Inphi Corporation

03/30/17 / #20170090132

Package structure for photonic transceiving device

A photonic transceiver apparatus in quad small form-factor pluggable (qsfp) package. The apparatus includes a case having a base member, two partial side members, and a lid member to provide a spatial volume with an opening at a back end of the base member. ... Inphi Corporation

03/30/17 / #20170090122

Temperature insensitive demux/mux in silicon photonics

A temperature insensitive demux/mux device whose wavelength does not change by environment temperature is provided for wdm application. The temperature insensitive demux/mux device includes a waveguide-based delay-line-interferometer configured to receive an input light bearing multiplexed wavelengths and output a first output light bearing the same multiplexed wavelengths but with a shifted intensity peak position. ... Inphi Corporation

03/23/17 / #20170085361

Circuit and method for creating additional data transitions

When a data path includes cmos circuitry, such circuitry may introduce jitter into the data signal. Embodiments are described in which additional data transitions are made to occur, and these additional data transitions may change the characteristics of the data frequency content transferred to the power supply so that such noise may be better filtered. ... Inphi Corporation

03/16/17 / #20170078120

Continuous time linear equalization for current-mode logic with transformer

The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide a cml that uses one or more equalization modules to apply equalization via secondary windings of transformers that are coupled, directly or indirectly, to the cml outputs. ... Inphi Corporation

03/16/17 / #20170078084

Serdes with high-bandwith low-latency clock and data recovery

The present application is directed to data communication. More specifically, embodiments of the present invention provide a serdes system that includes multiple communication lanes that are aligned using a clock signal. ... Inphi Corporation

03/09/17 / #20170070294

Integrated control module for communication system-on-a-chip for silicon photonics

In an example, the present invention includes an integrated system-on-chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

03/02/17 / #20170063520

Loss of signal detection on cdr

The present invention is directed to data communication. More specifically, an embodiment of the present invention provides a technique for detecting loss of signal. ... Inphi Corporation

03/02/17 / #20170059889

Off quadrature biasing of mach zehnder modulator for improved osnr performance

An integrated optical modulator device. The device can include a driver module coupled to an optical modulator. ... Inphi Corporation

02/09/17 / #20170038531

Silicon photonics device and communication system therefor

A silicon photonics device and system therefor. The silicon photonics device can include a 300 nm soi (silicon-on-insulator with 300 nm top si) overlying a substrate member. ... Inphi Corporation

02/02/17 / #20170033799

High frequency delay lock loop systems

The present invention is directed to signal processing system and electrical circuits. According to various embodiments, a dll system includes a delay line provides multiple output signals associated with different clock phases. ... Inphi Corporation

02/02/17 / #20170031117

Photonic transceiving device package structure

The apparatus includes a case having a base member, two partial side members, and a lid member to provide a spatial volume with an opening at a back end of the base member. Additionally, the apparatus includes a pcb installed inside the spatial volume over the base member with a pluggable connector at the back end. ... Inphi Corporation

01/26/17 / #20170026202

Pam data communication with reflection cancellation

The present invention is directed to data communication systems and methods. More specifically, embodiments of the present invention provide a communication system that removes reflection signals. ... Inphi Corporation

01/26/17 / #20170026167

Phase interpolator

Apparatus to implement several high performance phase interpolators are disclosed. Some embodiments are directed to a full-wave integrating phase interpolation core comprising two pairs of in-phase and quadrature-phase current dacs arranged in a cascode architecture to drive an integrating capacitor and produce an interpolation voltage waveform. ... Inphi Corporation

01/26/17 / #20170026065

Local phase correction

The present invention is directed to integrated circuits and methods thereof. More specifically, embodiments of the present invention provide a local correction for bending communication line pairs. ... Inphi Corporation

01/26/17 / #20170026058

Reconfigurable fec

The present invention is directed to data communication systems and methods thereof. According to various embodiments, the present invention provides a communication with a reconfigurable forward-error-correction (fec) module. ... Inphi Corporation

01/26/17 / #20170023805

Direct-coupled driver for mach-zehnder optical modulators

An optical modulator device directly-coupled to a driver circuit device. The optical modulator device can include a transmission line electrically coupled to an internal vdd, a first electrode electrically coupled to the transmission line, a second electrode electrically coupled to the first electrode and the transmission line. ... Inphi Corporation

01/19/17 / #20170019182

Optical pam modulation with dual drive mach zehnder modulators and low complexity electrical signaling

The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using pam format(s) over optical communication networks. ... Inphi Corporation

01/19/17 / #20170019179

Method and system for transmitter optimization of an optical pam serdes based on receiver feedback

The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using pam format(s) over optical communication networks. ... Inphi Corporation

01/19/17 / #20170019119

Offset correction for sense amplifier

The present invention is directed to data communication. More specifically, embodiments of the present invention provide an offset correction technique for a serdes system. ... Inphi Corporation

01/05/17 / #20170005731

Integrated control for silicon photonics

In an example, the present invention includes an integrated system on chip device. The device is configured on a single silicon substrate member. ... Inphi Corporation

01/05/17 / #20170005633

Trans-impedance amplifier with replica gain control

This disclosure relates to the field of amplifiers for multi-level optical communication and more particularly to techniques for trans-impedance amplifiers (tia) with gain control. The claimed embodiments address the problem of implementing a low cost tia that exhibits high linearity, low noise, low power, and wide bandwidth. ... Inphi Corporation








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